<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>常见的网页布局</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        li {
            list-style: none;
        }
        .top {
            height: 50px;
            background-color: gray;
        }
        .banner {
            height: 200px;
            width: 970px;
            background-color: gray;
            margin:10px auto;
        }
        .center {
            height: 500px;
            width: 970px;
            margin: 10px auto;
        }
        .center .mini ul li {
            float: left;
            width: 235px;
            height: 90px;
            background-color: gray;
            margin-right: 10px;
        }
        .center .mini .last {
            margin-right: 0;
        }
        .center .max ul li {
            float: left;
            width: 235px;
            height: 400px;
            background-color: gray;
            margin-right: 10px;
            margin-top: 10px;
        }
        .center .max .zore {
            margin-right: 0;
        }
        .footer {
            height: 150px;
            background-color: gray;
        }
    </style>
</head>
<body>
    <div class="top"></div>
    <div class="banner"></div>
    <div class="center">
        <div class="mini">
            <ul>
                <li></li>
                <li></li>
                <li></li>
                <li class="last"></li>
            </ul>
        </div>
        <div class="max">
            <ul>
                <li></li>
                <li></li>
                <li></li>
                <li class="zore"></li>
            </ul>
        </div>
    </div>
    <div class="footer"></div>
</body>
</html>